545505665 has 8 divisors (see below), whose sum is σ = 662893440. Its totient is φ = 430880112.

The previous prime is 545505659. The next prime is 545505679. The reversal of 545505665 is 566505545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545505665 - 2²⁴ = 528728449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690119 + ... + 690908.

It is an arithmetic number, because the mean of its divisors is an integer number (82861680).

Almost surely, 2^545505665 is an apocalyptic number.

It is an amenable number.

545505665 is a deficient number, since it is larger than the sum of its proper divisors (117387775).

545505665 is a wasteful number, since it uses less digits than its factorization.

545505665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381111.

The product of its (nonzero) digits is 450000, while the sum is 41.

The square root of 545505665 is about 23356.0627032897. The cubic root of 545505665 is about 817.0834645090.

The spelling of 545505665 in words is "five hundred forty-five million, five hundred five thousand, six hundred sixty-five".